Quick answers
- Is CVE-2026-12427 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-12427 being exploited in the wild.
- How severe is CVE-2026-12427?
- High severity, with a CVSS score of 7.2, published 11 November 2026.
- Which products and versions are affected?
- ARForms up to and including 7.2.4.
- Is there a fix for CVE-2026-12427?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-12427 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-12427?
- Check whether you run ARForms at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The plugin fails to sanitize the 'description' parameter, allowing unauthenticated attackers to inject arbitrary JavaScript via stored XSS. When an administrator views the affected entry, the injected payload is deserialized via maybe_unserialize() and any 'referrer' key in the attacker's array causes page_url and http_referrer values to be rendered unescaped in the admin detail view. An attacker with network access can craft a malicious request to inject persistent JavaScript that executes in the browser of any administrator viewing the compromised entry.
Affected products
- ARforms ARforms up to and including 7.2.4
Timeline
- 2026-11-11: disclosed